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Audio rendering smart TV apps through mobile devices
Universal Access in the Information Society ( IF 2.1 ) Pub Date : 2021-03-01 , DOI: 10.1007/s10209-021-00796-1
Daniel Costa , Carlos Duarte

TV service providers now offer a variety of features, including broadcast-related ones like electronic programme guides, catch-up and recording features, but also Internet access and a variety of TV applications. These new features turn TV devices into more versatile and interesting platforms, but also clog the screen with more content than ever. Since this content is mainly visual, this means that TVs have even more inaccessible content for visually impaired people. This paper presents the design of a solution that audio renders the TV application’s user interface through a mobile device. Resorting to a mix of accessibility experts and user studies, we compared multiple feedback versions containing different contextual information. Participants reported that the use of repetitive sentences should be avoided; concise feedback feels smoother and quicker but, for some, lacks information while extended feedback can be annoying and take too much time though is appropriate for learning phases. For menus, most participants suggested to include the position of an element and the number of elements. The results helped to identify the critical information to convey to the user and to tailor two modes differing in the amount of contextual information provided, suitable for differently skilled users. Additionally, we condensed the findings into a list of design guidelines which can be generalized to other auditory interfaces meant to be operated by a VI user.



中文翻译:

通过移动设备进行音频渲染智能电视应用

电视服务提供商现在提供各种功能,包括与广播相关的功能,例如电子节目指南,追赶和录制功能,以及互联网访问和各种电视应用程序。这些新功能使电视设备成为功能更丰富,更有趣的平台,同时也使屏幕内容比以往任何时候都要塞满。由于此内容主要是视觉内容,因此对于视障人士来说,电视具有更多无法访问的内容。本文提出了一种解决方案的设计,该解决方案可以通过移动设备以音频呈现TV应用程序的用户界面。借助于可访问性专家和用户研究的混合,我们比较了包含不同上下文信息的多个反馈版本。与会者报告说,应避免使用重复句子;简明的反馈感觉更流畅,更快捷,但对于某些人而言,它缺乏信息,而扩展的反馈可能会令人烦恼,并且尽管适合于学习阶段,却会花费太多时间。对于菜单,大多数参与者建议包括元素的位置和元素的数量。结果有助于识别要传达给用户的关键信息,并调整两种模式,这些模式在提供的上下文信息量方面有所不同,适用于不同技能的用户。此外,我们将调查结果汇总为一系列设计指南,这些指南可推广到其他应由VI用户操作的听觉界面。大多数参与者建议包括元素的位置和元素的数量。结果有助于识别要传达给用户的关键信息,并调整两种模式,这些模式在提供的上下文信息量方面有所不同,适用于不同技能的用户。此外,我们将调查结果汇总为一系列设计指南,这些指南可推广到其他应由VI用户操作的听觉界面。大多数参与者建议包括元素的位置和元素的数量。结果有助于识别要传达给用户的关键信息,并调整两种模式,这些模式在提供的上下文信息量方面有所不同,适用于不同技能的用户。此外,我们将调查结果汇总为一系列设计指南,这些指南可推广到其他应由VI用户操作的听觉界面。

更新日期:2021-03-01
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